Battery Pack for an Electric Tool

A battery pack for an electric power tool has a protective housing and battery cells received in the protective housing. The protective housing has a first housing side provided with a receiving shoe for mechanical attachment to a free end of the power tool handle. The receiving shoe has electrical contacts for connecting to electrical lines of the drive motor of the power tool. The protective housing has a second housing side providing a support surface extending substantially in a direction of the longitudinal center axis of the tool housing. The battery cells in the protective housing are arranged in the longitudinal direction behind one another in at least one row. At least one of the battery cells is displaced laterally such that a displaced row portion is formed and the support surface has a widened support surface portion transversely to the longitudinal center axis of the tool housing.